An amazing mineral for masculine health, zinc is used to make testosterone, and also signals for the synthesis of testosterone. Many men don’t get enough. And if you get way too little zinc, you might end up developing man-boobs while experiencing ball shrinkage … making it easy to see why this is so important for test. Read some reviews and you’ll see me freaking out over how awesome zinc is for virility and testosterone. Look for a good form though, like Zinc Gluconate or Zinc Citrate — cheap forms of Zinc are not only less absorbable (and less effective), they tend to have more of its notorious side effects, like stomach upset or tasting metal in your mouth. Verdict: very positive.
The second theory is similar and is known as "evolutionary neuroandrogenic (ENA) theory of male aggression".   Testosterone and other androgens have evolved to masculinize a brain in order to be competitive even to the point of risking harm to the person and others. By doing so, individuals with masculinized brains as a result of pre-natal and adult life testosterone and androgens enhance their resource acquiring abilities in order to survive, attract and copulate with mates as much as possible.  The masculinization of the brain is not just mediated by testosterone levels at the adult stage, but also testosterone exposure in the womb as a fetus. Higher pre-natal testosterone indicated by a low digit ratio as well as adult testosterone levels increased risk of fouls or aggression among male players in a soccer game.  Studies have also found higher pre-natal testosterone or lower digit ratio to be correlated with higher aggression in males.     
Thanks for reaching out buddy. Sorry to hear about your situation. First off, what I’d suggest is to forget about creams, they are a waste of money unless you are trying to moisturize your body – which I guess you’re not. As for estrogen blockers, the same goes here – but testosterone boosters on the other hand, they work with your body instead of against it to give you everything your body is missing – it sounds like it’s the missing piece to your puzzle. Bear in mind Graham, you’ll need to pay close attention to your diet – aim to cut down on refined carbohydrates and simple sugars – these are terrible for testosterone production and weight gain. If you drink more water, eat a balanced diet, and exercise occasionally while supplementing with you’ll soon be back on track. All the best!